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@TestMethodOrder(MethodOrderer.OrderAnnotation.class)
public class VideoAnalyticsTest {
	VideoAnalytics simple, nullHistory, emptyHistory, longHistory;
	int[] a;
	int[] b;
	int[] c;
	int[] d;
	
	public static int score = 0;
	public static String result = "";
	public static String currentMethodName = null;
	ArrayList<String> methodsPassed = new ArrayList<String>();
	
	@BeforeEach
	public void setUp() throws Exception {
		currentMethodName = null;
		
		a = new int[] {10,70,20,90,80,5};
		simple = new VideoAnalytics("El Clasico", a);
		
		b = null;
		nullHistory = new VideoAnalytics("Installing Eclipse", b);
		
		c = new int[0]; //empty array
		emptyHistory = new VideoAnalytics("Headphones Review", c);
		
		d = new int[] {10,10,20,10,20,30,10,20,30,40,5,40,50,60,80,70,70,80,90,100,110,120,130,140,150,160,170,180};
		longHistory = new VideoAnalytics("Practical exam walkthrough", d);
	}

	@Test @Order(1) @Graded(description="constructor", marks=8)
	public void testVideoAnalytics() {
		assertEquals("El Clasico", simple.title);
		assertEquals("Installing Eclipse", nullHistory.title);
		assertEquals("Headphones Review", emptyHistory.title);
		assertEquals("Practical exam walkthrough", longHistory.title);
		
		assertNotNull(simple.views);
		assertNotNull(emptyHistory.views);
		assertNotNull(longHistory.views);
		assertNull(nullHistory.views);

		assertNotEquals(a, simple.views, "you are making reference copy, you need to make instance copy. watch week 4 lecture.");
		assertNotEquals(c, emptyHistory.views);
		assertNotEquals(d, longHistory.views);
		
		currentMethodName = new Throwable().getStackTrace()[0].getMethodName();
	}

	@Test @Order(2) @Graded(description="getHistoryLength", marks=4)
	public void testGetHistoryLength() {
		assertEquals(6, simple.getHistoryLength());
		assertEquals(0, nullHistory.getHistoryLength());
		assertEquals(0, emptyHistory.getHistoryLength());
		assertEquals(28, longHistory.getHistoryLength());
		
		currentMethodName = new Throwable().getStackTrace()[0].getMethodName();

	}

	@Test @Order(3) @Graded(description="getTotalViews", marks=8)
	public void testGetTotalViews() {
		assertEquals(275, simple.getTotalViews());
		assertEquals(0, nullHistory.getTotalViews());
		assertEquals(0, emptyHistory.getTotalViews());
		assertEquals(2005, longHistory.getTotalViews());
		
		currentMethodName = new Throwable().getStackTrace()[0].getMethodName();
	}

	@Test @Order(4) @Graded(description="indexOfLeastViews", marks=8)
	public void testIndexOfLeastViews() {
		assertEquals(5, simple.indexOfLeastViews());
		assertEquals(null, nullHistory.indexOfLeastViews());
		assertEquals(null, emptyHistory.indexOfLeastViews());
		assertEquals(10, longHistory.indexOfLeastViews());	
		
		currentMethodName = new Throwable().getStackTrace()[0].getMethodName();
	}

	@Test @Order(5) @Graded(description="highestViewCount", marks=8)
	public void testHighestViewCount() {
		assertEquals(90, simple.highestViewCount());
		assertEquals(0, nullHistory.highestViewCount());
		assertEquals(0, emptyHistory.highestViewCount());
		assertEquals(180, longHistory.highestViewCount());		
		
		currentMethodName = new Throwable().getStackTrace()[0].getMethodName();
	}